relay-crypto 0.2.0-beta.4

The crypto library for the Relay Ecosystem.
Documentation 
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use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};
use serde_with::{base64::Base64, serde_as};

#[serde_as]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Key {
    pub alg: String,
    pub kid: String,
    #[serde_as(as = "Base64")]
    pub data: Vec<u8>,
}

#[serde_as]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PubRecord {
    pub id: String,
    pub created_at: DateTime<Utc>,
    pub expires_at: Option<DateTime<Utc>>,
    pub encryption: Key,
    pub signing: Key,
}

impl PubRecord {
    pub fn is_expired(&self) -> bool {
        if let Some(expires_at) = self.expires_at {
            Utc::now() > expires_at
        } else {
            false
        }
    }
}